<?php
use  Workerman\Worker;

// 初始化一个 worker 容器,监听1234 端口
$worker = new Worker('websocket://0.0.0.0:1234');

/*
 * 注意这里进程数必须设置为1，否则会报端口占用错误
 */
// js
//var ws = new WebSocket('ws://127.0.0.1:1234');
//ws.onopen = function(){
//    var uid = 'uid1';
//    ws.send(uid);
//};
//ws.onmessage = function(e){
//    alert(e.data);
//};
$worker->count = 4;
// worker进程启动后创建一个text Worker以便打开一个内部通讯端口
$worker->onWorkerStart = function ($worker) {
    $inner_text_worker = new Worker('text://0.0.0.0:5678');
    $inner_text_worker->onMessage = function ($connection, $buffer) {
        // $data数组格式，里面有uid，表示向那个uid的页面推送数据
        $data = json_decode($buffer, true);
        $uid = $data['uid'];
        // 通过workerman，向uid的页面推送数据
        $ret = sendMessageByUid($uid, $buffer);
        // 返回推送结果
        $connection->send($ret ? 'ok' : 'fail');
    };
    // ## 执行监听 ##
    $inner_text_worker->listen();
};
// 新增加一个属性，用来保存uid到connection的映射
$worker->uidConnections = array();
// 当有客户端发来消息是执行的回调函数
$worker->onMessage = function ($connection, $data) {
    global $worker;

    // 判断当前客户端是否已经验证,即是否设置了 uid
    if (!isset($connection->uid)) {
        // 没验证的话把第一个包当做uid（这里为了方便演示，没做真正的验证）
        $connection->uid = $data;
        /* 保存uid到connection的映射，这样可以方便的通过uid查找connection，
         * 实现针对特定uid推送数据
         */
        $worker->uidConnections[$connection->uid] = $connection;
        return;
    }
};
// 当有客户端连接断开时
$worker->onClose = function($connection)
{
    global $worker;
    if(isset($connection->uid))
    {
        // 连接断开时删除映射
        unset($worker->uidConnections[$connection->uid]);
    }
};
// 向所有验证的用户推送数据
function broadcast($message)
{
    global $worker;
    foreach($worker->uidConnections as $connection)
    {
        $connection->send($message);
    }
}

// 针对 uid 推送数据
function sendMessageByUid($uid, $message)
{
    global $worker;
    if (isset($worker->uidConnections[$uid])) {
        $connection = $worker->uidConnections[$uid];
        $connection->send($message);
        return true;
    }
    return false;
}

Worker::runAll();
